||The epidemiology of sleep behavior, physical activity, and depression : A review of the literature
Supartini, AtinKumagai, Shuzo
64 , 2017-03-24 , 九州大学健康科学編集委員会
The aim of this study is to review the literature on the epidemiological studies of sleep behavior, physical activity and depression. Based on the reviewed literature, depression has been linked to sleep-related factors ; sleep disturbances, sleep quality, sleep quantity and sleep timing. Similar to western findings, numerous epidemiological studies conducted in Japan have identified sleep disturbances as a significant risk factor for the later development of depression. However, the epidemiology studies on the relation between sleep timing, sleep quality and depressive symptoms are few and mostly cross-sectional designed. Therefore, this study is warranty and timely. Furthermore, the combination of sleep and physical activity in relation to depression remains unclear.